Facts about the expansion of the universe - Where is the ALIEN life ?

The expansion of the universe was discovered in 1927 by the Belgian Georges Lemaître. He discovered what was before him, Friedman found that the basic equations of relativity theory result is a dynamic universe. This discovery, he combined with Slipher and Hubble's redshift distances. He concluded that the universe is expanding. In its publication in the Annales de la Société Scientifique de Bruxelles in 1927, Lemaître was already the "Hubble law". Lemaître has deduced theoretically that galaxies are receding faster the further they are away from us (compare: the Hubble constant). This result confirms he found in the observations. He was held for the Hubble constant H0 a value that was near the value found by Hubble in 1929. Lemaître insisted that the "flight" of galaxies (in the context of the Shapley-Curtis debate with the no longer used term "cloud flight" means) is not understood as a movement in a fixed space away from us, but, in the sense the general relativity theory as an expansion of space.

Hubble found the relationship itself, ie the relationship between the distances of galaxies and interpreted as the redshift velocities v (Doppler effect), in 1929. He hinted, however, not as an expansion of the universe, but in the sense of de Sitter's 1917 proposed a model of a static universe. Hubble has represented the model of the expanding universe and never - to judge by his publications - probably never believed it.